Michigan PROCEDURES EMERGENCY AIRWAY
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Michigan PROCEDURES EMERGENCY AIRWAY September, 2019 Section 7-9 Emergency Airway Alias: Airway Management, Airway Intervention, Supraglottic Airway, Intubation, Cricothyroidotomy. Effective airway management and ventilation are important lifesaving interventions that all EMS providers must be able to perform. The approach to airway management should generally proceed in a stepwise fashion, from basic to advanced, since basic maneuvers can sustain life until an advanced airway can be established. Providers should use clinical judgment in conjunction with medical direction to determine which interventions are most appropriate for a particular patient. Indications for Airway Management and Ventilation 1. Airway Management a. Airway obstruction b. Need for positive pressure ventilation (see below) c. Airway protection, such as an unconscious patient without a gag reflex. d. Trauma patient with a Glasgow Coma Score of 8 or less. 2. Positive Pressure Ventilation a. Respiratory or cardiac arrest (including agonal respirations) b. Respiratory failure (inadequate respiratory rate/volume) Contraindications for Airway Management and Ventilation 1. Presence of a gag reflex may be a contraindication to some specific airway interventions. 2. Specific supraglottic airways may have contraindications due to caustic ingestion or known esophageal varices. MANAGEMENT OVERVIEW 1. In cases of foreign body airway obstruction, refer to Foreign Body Airway Obstruction section of this protocol. 2. CPAP (when available) should be considered for patients with severe respiratory distress that do not improve with supplemental oxygen administration in accordance with the CPAP/BiPAP Administration Procedure. 3. When the airway is not self-maintained, open the airway using basic maneuvers (chin lift or jaw thrust). Patients with a potential cervical spine injury should have a modified jaw thrust performed attempting to minimize neck flexion and extension. 4. Perform oral pharyngeal suctioning as needed to remove body fluids and minimize risk of aspiration. When possible, suctioning should be limited to no more than 15 seconds and should not extend beyond the pharynx. 5. In unconscious patients without a gag reflex, insert a properly sized oropharyngeal airway. Immediately remove upon return of gag reflex. 6. In unconscious patients with gag reflex, consider insertion of a properly sized nasopharyngeal airway, using water-soluble lubrication when available. 7. In patients requiring bag-valve-mask ventilations, consider inserting both oral and nasopharyngeal airways to optimize ventilations. 8. For patients with respiratory arrest or significant respiratory depression (e.g., adult patient with respiratory rate less than 8 per minute) perform bag-valve-mask (BVM) ventilations. a. Note: BVM ventilations should be performed by 2 rescuers whenever possible. Use supplemental oxygen and reservoir system, focusing on adequate chest rise and ventilations that are not too forceful. MCA Name: Oakland County MCA Board Approval Date: December 6, 2019 Page 1 of 13 MCA Implementation Date: February 1, 2020 Protocol Source/References: Michigan PROCEDURES EMERGENCY AIRWAY September, 2019 Section 7-9 9. Ventilate at an appropriate rate. Avoid hyperventilation. Generally appropriate rates for ventilation are: a. Adults >8 y/o 10 breaths / minute b. Children 1-8 y/o 20 breaths / minute c. Infants < 1 y/o 25 breaths / minute 10. A pocket mask or face shield is an acceptable alternative for single rescuer ventilations. 11. When caring for patients with stomas, use pediatric masks to achieve seal. 12. For patients with a tracheostomy tube and home ventilator connect BVM (without mask) directly to tracheostomy tube and ventilate at appropriate rates. 13. In the adult patient, providers may consider continuing basic airway management techniques if the airway is able to be maintained adequately. 14. In the pediatric patient (14 or under), providers must continue basic airway management, unless the airway is unable to be adequately maintained. 15. MCA-approved supraglottic airways (e.g., Combitube®, King Laryngeal Tracheal Tube or i- gel®) may be used to secure the airways in unconscious patients that do not have a gag reflex. MCA Approved Supraglottic Airways ☒ Combitube ® ☒ King Laryngeal Tracheal Tube ® ☒ i-gel ® a. i-gel® is the only supraglottic airway for MFR use. It does not require cuff inflation and can be used by MFR if approved by the MCA and adopted by the agency. MCA Approval for MFR use of i-gel ® (Agency Optional) ☒ Yes ☐ No 16. In cardiac arrest patients, although endotracheal intubation has been considered the gold standard, supraglottic airways are considered equivalent to endotracheal intubation and are appropriate as a first-line advanced airway and should be used early when endotracheal intubation cannot be readily performed without interrupting chest compressions. Use of supraglottic airways in cardiac arrest patients may allow for earlier transition to continuous chest compressions. 17. Each MCA must select at least one state-authorized supraglottic airway for use in their system. 18. Supraglottic airways should be placed in accordance with manufacturer’s instructions for use (see appropriate procedure) and must be confirmed by positive end-tidal CO2 levels by waveform capnography (preferred) or by use of colorimetric qualitative end-tidal CO2 detectors and by auscultation for absence of gastric sounds and presence of bilateral lung sounds. Additional clinical findings consistent with a properly placed airway include chest expansion, improvement in patient’s color, and improvement in pulse oximetry (when available). 19. Supraglottic airway placement should be re-confirmed at frequent intervals throughout the care of the patient, particularly after each patient movement. MCA Name: Oakland County MCA Board Approval Date: December 6, 2019 Page 2 of 13 MCA Implementation Date: February 1, 2020 Protocol Source/References: Michigan PROCEDURES EMERGENCY AIRWAY September, 2019 Section 7-9 PROCEDURE MFR EMT EMT-A PARAMEDIC (Specialist) Oropharyngeal Airway X X X X Nasopharyngeal Airway X X X X Bag-Valve-Mask Ventilation X X X X Supraglottic Airway (Individual Agency O/SR X X X approval per MCA) Oral Endotracheal Intubation X Needle / Surgical Cricothyroidotomy O/O X: Approved Intervention O: Optional Intervention per MCA selection SR: Special Requirements =additional education, monitoring and reporting. Table 1 Airway Procedures * This table indicates the type of airway procedures allowed per level of licensure. Based on jurisdictional need, the MCA may approve the use of the i-gel® supraglottic airway by MFRs. If an MCA opts to allow MFRs in a particular agency to utilize the i-gel® airway, special requirements must be enacted by the MCA including competency assessment, on-going training for MFRs, and PSRO review of every case in which an MFR utilizes a supraglottic airway. 20. Orotracheal intubation under direct laryngoscopy may be performed in adult patients who are unable to protect their own airway (e.g., no gag reflex), require sustained positive pressure ventilation, and/or are in cardiac arrest. 21. Orotracheal intubation under direct laryngoscopy may be performed in pediatric patients (14 years old and under) who are unable to protect their own airway (e.g., no gag reflex), require sustained positive pressure ventilation, and/or are in cardiac arrest ONLY when basic airway management techniques (e.g., 2-person mask ventilation with oropharyngeal airway) are ineffective. Per MCA selection, may be pre or post-radio. MCA Selection Pediatric Intubation ☒☐ Pre-Radio ☐ Post-Radio 22. Deep tracheal suctioning may be performed when indicated using sterile technique and suctioning only during withdrawal of catheter. a. Maximum suction time: i. Adults (>14 years old): maximum 10 seconds ii. Children (1 to 14 years old): maximum 10 seconds iii. Infants (< 1 year old) maximum 5 seconds MCA Name: Oakland County MCA Board Approval Date: December 6, 2019 Page 3 of 13 MCA Implementation Date: February 1, 2020 Protocol Source/References: Michigan PROCEDURES EMERGENCY AIRWAY September, 2019 Section 7-9 23. When approved by local MCA, needle and/or surgical cricothyroidotomy may be performed when airway compromise from injury is present that prevents ventilation with basic techniques and makes intubation impractical in a patient who needs immediate airway management. In cases of complete airway obstruction that cannot be corrected, and in situations when other basic and advanced airway management techniques are unsuccessful in achieving effective ventilation. ☒ MCA approval of Needle Cricothyroidotomy by Paramedics ☒ MCA approval of Surgical Cricothyroidotomy by Paramedics ☒ MCA Commercial Percutaneous Cricothyroidotomy by Paramedics 24. Use of sedation to facilitate advanced airway placement is contraindicated. Sedation for tube tolerance following successful tube placement is indicated in accordance with the Patient Sedation Procedure. FOREIGN BODY AIRWAY OBSTRUCTION This procedure is intended for situations in which a severe foreign body airway obstruction (FBAO) has occurred. EMS personnel must be able to rapidly initiate treatment in such cases. Note: Sudden cardiac arrest that occurs while a person is eating is frequently dispatched as “choking.” EMS personnel should consider these cases to be potential cardiac arrests. 1. In conscious (responsive) adults and children >1 year of age, deliver abdominal thrusts in rapid sequence until the obstruction is relieved. 2. Administer